Plant for the conversion of olefinic C.sub.4 and C.sub.5 cuts to an ether and to propylene
US6159433A · kind A · utility
16Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Nov 2, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention concerns a plant for the conversion of an olefinic C.sub.4 or C.sub.5 cut to an alkyl-tertiobutylether or alkyl-tertioamylether and to propylene, by metathesis. The plant comprises four successive stages: (1) selective hydrogenation of the diolefins with simultaneous isomerisation of the alpha olefins to internal olefins; (2) etherification of the isoolefins; (3) elimination of oxygen-containing impurities; (4) metathesis of internal olefins with ethylene. Application to C.sub.4 and C.sub.5 steam cracking units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.